Most outfits that aren't working have the same problem: too many things asking for attention at once.
The best outfits have a visual order.
One element does the most work: a statement piece, a bold colour, an unusual texture. Another element supports it. Everything else complements this. Add more competing elements and that order breaks. The eye doesn't know where to land, so it lands nowhere, and the whole thing looks too busy.
What's an element, exactly?
An element is anything the eye actively notices. A bold colour. A pattern. Texture: leather, velvet, shearling. A unique silhouette. The chunky shoe, the structured bag, the detail you'd clock from across the room.
A white t-shirt isn't an element. Neutrals hold space without competing. Three elements means three things doing visual work, not three interesting pieces.

Still from Breakfast at Tiffany's (1961), dir. Blake Edwards / Paramount Pictures
Three is everywhere
The rule of thirds in photography. Three acts in film. Triads in music. Beginning, middle, end. Three primary colours. Three wishes.
Three is the smallest number that forms a complete pattern. Two points make a line; three make a shape. Working memory research is consistent on this: the brain processes groups of three with near-perfect accuracy. More than three and recall drops. Fewer than three and something feels missing. The eye works the same way. An outfit with three elements lands, but any more than that and the brain starts dropping things.
The diagnostic
Next time an outfit isn't working, count the elements. It's usually four or five. The fix isn't to start over; it's to quiet one thing. Swap the textured shoe for a plain one. Replace the patterned layer with something flat. Removing one element is almost always enough.
The exception
One element done well is stronger than three done carelessly. A monochrome look where the only variable is texture. All-black where proportion does everything.

Still from The Matrix (1999), dir. The Wachowskis / Warner Bros.
The rule isn't always use three. It's never go past three without knowing why.
The "nothing to wear" feeling typically isn't a wardrobe problem. The clothes are there, it comes down to how you style them. Sometimes everything is just competing at once, and nothing is leading. Find the three. The rest will fall into place.
- Oro
